org.apache.hadoop.hbase.security

类 EncryptionUtil

java.lang.Object

org.apache.hadoop.hbase.security.EncryptionUtil

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class EncryptionUtil
extends Object

Some static utility methods for encryption uses in hbase-client.

构造器概要

构造器

构造器和说明
EncryptionUtil()

方法概要

方法

限定符和类型	方法和说明
static Key	unwrapKey(org.apache.hadoop.conf.Configuration conf, String subject, byte[] value) Unwrap a key by decrypting it with the secret key of the given subject.
static Key	unwrapWALKey(org.apache.hadoop.conf.Configuration conf, String subject, byte[] value) Unwrap a wal key by decrypting it with the secret key of the given subject.
static byte[]	wrapKey(org.apache.hadoop.conf.Configuration conf, byte[] key, String algorithm) Protect a key by encrypting it with the secret key of the given subject.
static byte[]	wrapKey(org.apache.hadoop.conf.Configuration conf, String subject, Key key) Protect a key by encrypting it with the secret key of the given subject.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

EncryptionUtil

public EncryptionUtil()

方法详细资料

wrapKey

public static byte[] wrapKey(org.apache.hadoop.conf.Configuration conf,
             byte[] key,
             String algorithm)
                      throws IOException

Protect a key by encrypting it with the secret key of the given subject. The configuration must be set up correctly for key alias resolution.

参数:

conf - configuration

key - the raw key bytes

algorithm - the algorithm to use with this key material

返回:

the encrypted key bytes

抛出:

IOException

wrapKey

public static byte[] wrapKey(org.apache.hadoop.conf.Configuration conf,
             String subject,
             Key key)
                      throws IOException

Protect a key by encrypting it with the secret key of the given subject. The configuration must be set up correctly for key alias resolution.

参数:

conf - configuration

subject - subject key alias

key - the key

返回:

the encrypted key bytes

抛出:

IOException

unwrapKey

public static Key unwrapKey(org.apache.hadoop.conf.Configuration conf,
            String subject,
            byte[] value)
                     throws IOException,
                            KeyException

Unwrap a key by decrypting it with the secret key of the given subject. The configuration must be set up correctly for key alias resolution.

参数:

conf - configuration

subject - subject key alias

value - the encrypted key bytes

返回:

the raw key bytes

抛出:

IOException

KeyException

unwrapWALKey

public static Key unwrapWALKey(org.apache.hadoop.conf.Configuration conf,
               String subject,
               byte[] value)
                        throws IOException,
                               KeyException

Unwrap a wal key by decrypting it with the secret key of the given subject. The configuration must be set up correctly for key alias resolution.

参数:

conf - configuration

subject - subject key alias

value - the encrypted key bytes

返回:

the raw key bytes

抛出:

IOException - if key is not found for the subject, or if some I/O error occurs

KeyException - if fail to unwrap the key